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mod_incupd.F90
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mod_incupd.F90
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#if defined(ROW_LAND)
#define SEA_P .true.
#define SEA_U .true.
#define SEA_V .true.
#elif defined(ROW_ALLSEA)
#define SEA_P allip(j).or.ip(i,j).ne.0
#define SEA_U alliu(j).or.iu(i,j).ne.0
#define SEA_V alliv(j).or.iv(i,j).ne.0
#else
#define SEA_P ip(i,j).ne.0
#define SEA_U iu(i,j).ne.0
#define SEA_V iv(i,j).ne.0
#endif
module mod_incupd
use mod_xc ! HYCOM communication interface
!
implicit none
!
! --- HYCOM incremental updating (for data assimilation).
! --- Stochastic anomaly forcing is also handled here for convenence.
!
integer, save, public :: &
incflg, & ! incremental update flag (0=no,-/+1=yes,-/+2=full-velocity)
! -ve to read in difference archive for increment
incstp, & ! no. timesteps for full update (1=full insertion)
incupf, & ! number of days of incremental updating input
! -ve to write a restart after each update completes
incice ! direct insertion of sea ice concentration flag
!
logical, save, private :: &
lrestart ! write a restart after each update completes
!
integer, save, private :: &
ncount, & ! increment time step counter
ncountd ! increment day counter
!
real*8, save, private :: &
dtimeu ! next days increment field
!
real, allocatable, dimension(:,:), &
save, private :: &
ubinc, & ! ubaro increment
vbinc, & ! vbaro increment
covinc, & ! covice increment for direct insertion
thkinc ! thkice increment for direct insertion
!
real, allocatable, dimension(:,:,:), &
save, private :: &
tinc, & ! t increment
sinc, & ! s increment
dpinc, & ! dp increment
uinc, & ! u increment
vinc ! v increment
contains
subroutine incupd_init(dtime0)
!
real*8 dtime0
!
! --- subroutine used to calculate increment field for the incremental updating
! --- version: dec 2005
!
integer i,j,k
logical lopen
!
! --- allocate arrays
!
allocate( tinc(1-nbdy:idm+nbdy,1-nbdy:jdm+nbdy,kdm), &
sinc(1-nbdy:idm+nbdy,1-nbdy:jdm+nbdy,kdm), &
dpinc(1-nbdy:idm+nbdy,1-nbdy:jdm+nbdy,kdm), &
uinc(1-nbdy:idm+nbdy,1-nbdy:jdm+nbdy,kdm), &
vinc(1-nbdy:idm+nbdy,1-nbdy:jdm+nbdy,kdm), &
ubinc(1-nbdy:idm+nbdy,1-nbdy:jdm+nbdy), &
vbinc(1-nbdy:idm+nbdy,1-nbdy:jdm+nbdy), &
covinc(1-nbdy:idm+nbdy,1-nbdy:jdm+nbdy), &
thkinc(1-nbdy:idm+nbdy,1-nbdy:jdm+nbdy) )
call mem_stat_add( 5*(idm+2*nbdy)*(jdm+2*nbdy)*kdm )
call mem_stat_add( 4*(idm+2*nbdy)*(jdm+2*nbdy) )
!
! --- set counter to zero
!
ncount = 0
ncountd = 0
dtimeu = 1.d-6
!
! --- restart flag
!
lrestart = incupf.lt.0
incupf = abs(incupf)
!
! --- read the target fields, and initialize the "inc" arrays.
!
if (incflg.gt.0) then
call incupd_read_full(dtime0)
else !(incflg.le.0)
call incupd_read_diff(dtime0)
endif
!
return
end subroutine incupd_init
subroutine incupd_rd(dtime0)
!
real*8 dtime0
!
! --- subroutine used to calculate increment field for the incremental updating
! --- version: dec 2005
!
integer i,j,k
logical lopen
!
if (ncountd.gt.incupf) then
if (ncountd.eq.incupf+1) then
! should never get here, see ncountd=incupf+99 in incupd_read_*
if (mnproc.eq.1) then
write(lp,*) '... ended updating fields with increments ....'
write(lp,*) 'ncountd= ',ncountd
write(lp,*)
endif !1st tile
call xcsync(flush_lp)
endif
return
endif
!
! --- read the target fields, and initialize the "inc" arrays.
!
if (incflg.gt.0) then
call incupd_read_full(dtime0)
else !(incflg.le.0)
call incupd_read_diff(dtime0)
endif
!
return
end subroutine incupd_rd
subroutine incupd(n, restrt)
use mod_cb_arrays ! HYCOM saved arrays
use mod_pipe ! HYCOM debugging interface
!
logical restrt
integer n
!
!**********
!*
! 1) update hycom variables with increments.
!
! 2) parameters:
!
! output:
! incremental updated model variables
!
! 4) Ole Martin Smedstad (PSI), December 2005
!
!**********
!
logical, parameter :: lpipe_incupd=.false. !extra checking
!
character utxt*12,vtxt*12
integer i,j,k
real q,utotij,vtotij
!
# include "stmt_fns.h"
!
if (ncountd.gt.incupf) then
!-------if (mnproc.eq.1) then
!-------write(lp,*) '... ended updating fields with increments .....'
!-------write(lp,*) 'ncountd= ',ncountd
!-------write(lp,*)
!-------endif !1st tile
!-------call xcsync(flush_lp)
return
endif
!
! --- update counter
!
if (incstp.ne.1) then
ncount=ncount+1
if (ncount.eq.1 .or. ncount.eq.incstp+1) then
q = 0.5 !half increment on 1st and incstp+1th step
else
q = 1.0
endif !ncount
else
q = 1.0
endif
!
if (ncount.gt.incstp+1) then
if (ncount.eq.incstp+2) then
if (mnproc.eq.1) then
write(lp,*) '... ended updating fields with increments ...'
write(lp,*) 'ncount= ',ncount
write(lp,*)
endif !1st tile
call xcsync(flush_lp)
endif !ncount==incstp+2
return
endif !ncount>incstp+1
!
! --- ncount <= incstp+1
!
if (mnproc.eq.1) then
write(lp,*)
if (abs(incflg).eq.1) then
write(lp,'(2a)') 'update fields with increments, ', &
'but not ubavg and vbavg'
else !abs(incflg).eq.2
write(lp,'(2a)') 'update fields with increments, ', &
'including ubavg and vbavg'
endif !incflg
write(lp,*) '..........ncount,q= ',ncount,q
endif !1st tile
call xcsync(flush_lp)
!
! --- incremental update of dp (dpu, dpv).
!
!$OMP PARALLEL DO PRIVATE(j,k,i) &
!$OMP SCHEDULE(STATIC,jblk)
do j=1,jj
do i=1,ii
if (SEA_P) then
do k=1,kk-1
! --- dp must be non-negative
dp(i,j,k,n) = max( dp(i,j,k,n) + q*dpinc(i,j,k), 0.0 )
! --- p must be at or above the bottom
p(i,j,k+1) = min( p(i,j,k) + dp(i,j,k,n), &
p(i,j,kk+1) )
dp(i,j,k,n) = p(i,j,k+1) - p(i,j,k)
enddo !k
! --- layer kk always touches the bottom
dp(i,j,kk,n) = p(i,j,kk+1) - p(i,j,kk)
endif !ip
enddo !i
enddo !j
!$OMP END PARALLEL DO
!
call dpudpv(dpu(1-nbdy,1-nbdy,1,n), &
dpv(1-nbdy,1-nbdy,1,n), &
p,depthu,depthv, 0,0)
!
if (lpipe_incupd) then
do k= 1,kk
write (utxt,'(a9,i3)') 'up dpu k=',k
write (vtxt,'(a9,i3)') 'up dpv k=',k
call pipe_compare_sym2(dpu(1-nbdy,1-nbdy,1,n),iu,utxt, &
dpv(1-nbdy,1-nbdy,1,n),iv,vtxt)
enddo !k
endif !lpipe_incupd
!
! --- incremental update of the other fields.
! --- salinity from updated th&S.
! --- rebalance u and v via utotij and vtotij.
!
!$OMP PARALLEL DO PRIVATE(j,i,k,utotij,vtotij) &
!$OMP SCHEDULE(STATIC,jblk)
do j=1,jj
do i=1,ii
if (SEA_P) then
do k=1,kk
if (tinc(i,j,k).ne.0.0 .or. &
sinc(i,j,k).ne.0.0 ) then
temp(i,j,k,n) = temp(i,j,k,n) + q*tinc(i,j,k)
saln(i,j,k,n) = saln(i,j,k,n) + q*sinc(i,j,k)
th3d(i,j,k,n) = sig(temp(i,j,k,n),saln(i,j,k,n))-thbase
endif !non-zero increment
enddo ! k
endif !ip
if (SEA_U) then
utotij = 0.0
do k=1,kk
u(i,j,k,n) = u(i,j,k,n) + q*uinc(i,j,k)
utotij = utotij + u(i,j,k,n)*dpu(i,j,k,n)
enddo ! k
utotij=utotij/depthu(i,j)
do k=1,kk
u(i,j,k,n) = u(i,j,k,n) - utotij
enddo ! k
if (abs(incflg).eq.2) then !update ubavg
ubavg(i,j,n) = ubavg(i,j,n) + q*ubinc(i,j)
! ubavg(i,j,n) = ubavg(i,j,n) + q*ubinc(i,j) + utotij
endif !incflg==2
endif !iu
if (SEA_V) then
vtotij = 0.0
do k=1,kk
v(i,j,k,n) = v(i,j,k,n) + q*vinc(i,j,k)
vtotij = vtotij + v(i,j,k,n)*dpv(i,j,k,n)
enddo ! k
vtotij=vtotij/depthv(i,j)
do k=1,kk
v(i,j,k,n) = v(i,j,k,n) - vtotij
enddo ! k
if (abs(incflg).eq.2) then !update vbavg
vbavg(i,j,n) = vbavg(i,j,n) + q*vbinc(i,j)
! vbavg(i,j,n) = vbavg(i,j,n) + q*vbinc(i,j) + vtotij
endif !incflg==2
endif !iv
enddo !i
enddo ! j
!$OMP END PARALLEL DO
!
if (iniflg.lt.0 .and. incice.eq.1 .and. ncount.eq.incstp) then
if (mnproc.eq.1) then
write(lp,*) '... direct insertion of covice and thkice'
write(lp,*)
endif !1st tile
call xcsync(flush_lp)
!$OMP PARALLEL DO PRIVATE(j,k,i) &
!$OMP SCHEDULE(STATIC,jblk)
do j=1,jj
do i=1,ii
if (SEA_P) then
covice(i,j)=max(0.0,min(1.0,covice(i,j)+covinc(i,j)))
thkice(i,j)=max(0.0, thkice(i,j)+thkinc(i,j) )
endif !ip
enddo !li
enddo !j
!$OMP END PARALLEL DO
endif !covice and thkice
!
if (mnproc.eq.1) then
write(lp,*) 'finished incupdate',ncount
write(lp,*)
endif !1st tile
call xcsync(flush_lp)
!
if (lrestart .and. ncount.eq.incstp) then
restrt = .true.
!
if (mnproc.eq.1) then
write(lp,*) 'incupd: set the flag to write a restart'
write(lp,*)
endif !1st tile
call xcsync(flush_lp)
endif
return
end subroutine incupd
subroutine incupd_read_full(dtime)
use mod_cb_arrays ! HYCOM saved arrays
use mod_za ! HYCOM I/O interface
use mod_pipe ! HYCOM debugging interface
!
real*8 dtime
!
! --- input 3-d HYCOM fields (from an archive file) on model day dtime.
! --- directly insert the input covice and thkice (if they exist).
! --- calculate the increment between the input and the initial state.
!
! --- filenames incup/incupd.iyear_iday_ihour.[ab].
! --- I/O and array I/O unit 925 used here, but not reserved.
!
logical, parameter :: ldebug_incupd_read=.false. !usually .false.
!
character flnm*24, cline*80, cvarin*6, cfield*8
character ptxt*12,utxt*12,vtxt*12
integer i,idmtst,ios,j,jdmtst,k,l,layer,nskip
integer iyear,iday,ihour
logical nodens
real tincstp
! real sumdpi
!
integer nstep0
real*8 dtime0
!
# include "stmt_fns.h"
!
call forday(dtime, yrflag, iyear,iday,ihour)
!
write(flnm,'("incup/incupd.",i4.4,"_",i3.3,"_",i2.2)') &
iyear,iday,ihour
!
if(dtime.ge.dtimeu) then
!
ncountd=ncountd+1
ncount=0
!
if (ncountd.gt.incupf) then
if (ncountd.eq.incupf+1) then
if (mnproc.eq.1) then
write(lp,*) '... ended updating fields with increments ...'
write(lp,*) 'ncountd= ',ncountd
write(lp,*)
endif !1st tile
call xcsync(flush_lp)
ncountd=incupf+99 !turn off "ended" printout
endif
return
endif !ncountd>incupf
!
if (mnproc.eq.1) then
write(lp,*) 'read (full) incremental updating ...'
write(lp,*) 'ncountd ...',ncountd
write (lp,*) 'incupd_read: ',flnm
write (lp,*) ' time: ',dtime
write (lp,*) 'iyear,iday,ihour: ',iyear,iday,ihour
endif !1st tile
call xcsync(flush_lp)
!
call zaiopf(flnm//'.a','old', 925)
if (mnproc.eq.1) then ! .b file from 1st tile only
open (unit=uoff+925,file=flnm//'.b',form='formatted', &
status='old',action='read')
!
read(uoff+925,'(a)') cline
read(uoff+925,'(a)') cline
read(uoff+925,'(a)') cline
read(uoff+925,'(a)') cline
!
read(uoff+925,'(a)') cline !'iversn'
read(uoff+925,'(a)') cline !'iexpt '
read(uoff+925,'(a)') cline !'yrflag'
endif !1st tile
!
call zagetc(cline,ios, uoff+925)
read(cline,*) idmtst,cvarin
! if (mnproc.eq.1) then
! write(lp,*) cvarin,' = ',idmtst
! endif !1st tile
if (cvarin.ne.'idm ') then
if (mnproc.eq.1) then
write(lp,*)
write(lp,*) 'error in incupd_read_full - input ',cvarin, &
' but should be idm '
write(lp,*)
endif !1st tile
call xcstop('(incupd_read_full)')
stop '(incupd_read_full)'
endif
call zagetc(cline,ios, uoff+925)
read(cline,*) jdmtst,cvarin
! if (mnproc.eq.1) then
! write(lp,*) cvarin,' = ',jdmtst
! endif !1st tile
if (cvarin.ne.'jdm ') then
if (mnproc.eq.1) then
write(lp,*)
write(lp,*) 'error in incupd_read_full - input ',cvarin, &
' but should be jdm '
write(lp,*)
endif !1st tile
call xcstop('(incupd_read_full)')
stop '(incupd_read_full)'
endif
!
if (idmtst.ne.itdm .or. jdmtst.ne.jtdm) then
if (mnproc.eq.1) then
write(lp,*)
write(lp,*) 'error in incupd_read_full - input idm,jdm', &
' not consistent with parameters'
write(lp,*) 'idm,jdm = ',itdm, jtdm, ' (dimensions.h)'
write(lp,*) 'idm,jdm = ',idmtst,jdmtst,' (input)'
write(lp,*)
endif !1st tile
call xcstop('(incupd_read_full)')
stop '(incupd_read_full)'
endif
!
if (mnproc.eq.1) then ! .b file from 1st tile only
read (uoff+925,*)
endif
!
! --- skip (most) surface fields.
!
call zaiosk(925)
call zagetc(cline,ios, uoff+925)
i = index(cline,'=')
read(cline(i+1:),*) nstep0,dtime0,layer
if (mnproc.eq.1) then
write(lp,*) 'dtime0= ',dtime0
endif
if (dtime0.ne.dtime) then
if (mnproc.eq.1) then
write(lp,*)
write(lp,*) 'error in incupd_read_full - input ',dtime0, &
' but dtime should be ',dtime
write(lp,*)
endif !1st tile
call xcstop('(incupd_read_full)')
stop '(incupd_read_full)'
endif
nodens = layer.ne.0 !new or original archive type
if (nodens .and. layer.ne.sigver) then
if (mnproc.eq.1) then
write(lp,*)
write(lp,*) 'error in incupd_read_full - input ',layer, &
' sigver but should be ',sigver
write(lp,*)
endif !1st tile
call xcstop('(incupd_read_full)')
stop '(incupd_read_full)'
endif
!
! assumes that there is a new incremental updating file once a day
! for "incupf" days, see blkdat.input
!
dtimeu=dtime0+1.d0
!
if (mnproc.eq.1) then
write(lp,*)
write(lp,*) 'dtime, dtime0, dtimeu = ',dtime, &
dtime0, dtimeu
write(lp,*)
endif !1st tile
call xcsync(flush_lp)
!
if (nodens) then
do i= 2,6
if (mnproc.eq.1) then ! .b file from 1st tile only
read (uoff+925,*)
endif
call zaiosk(925)
enddo
else
do i= 2,11
if (mnproc.eq.1) then ! .b file from 1st tile only
read (uoff+925,*)
endif
call zaiosk(925)
enddo
endif
!
do
call rd_archive(ubinc, cfield,layer, 925)
if (cfield.eq.'covice ' .or. cfield.eq.'u_btrop ') then
exit
endif
enddo !found u_btrop or covice
if (mnproc.eq.1) then
write(lp,'(2a)') "surface: ",cfield
endif
call xcsync(flush_lp)
if (cfield.eq.'covice ') then
!
! --- directly insert covice and thkice.
!
call rd_archive(util5, cfield,layer, 925) !thkice
if (mnproc.eq.1) then
write(lp,'(2a)') "surface: ",cfield
endif
call xcsync(flush_lp)
!$OMP PARALLEL DO PRIVATE(j,k,i) &
!$OMP SCHEDULE(STATIC,jblk)
do j=1,jj
do i=1,ii
if (SEA_P) then
covice(i,j)=ubinc(i,j)
thkice(i,j)=util5(i,j)
endif !ip
enddo !li
enddo !j
!$OMP END PARALLEL DO
call zaiosk(925) !temice
if (mnproc.eq.1) then ! .b file from 1st tile only
read (uoff+925,*)
endif
call rd_archive(ubinc, cfield,layer, 925)
if (mnproc.eq.1) then
write(lp,'(2a)') "surface: ",cfield
endif
call xcsync(flush_lp)
incice = 1 !have input covice, don't direct insert si_c
else
incice = -1 !have not input covice, might direct insert si_c
endif
call rd_archive(vbinc, cfield,layer, 925)
if (mnproc.eq.1) then
write(lp,'(2a)') "surface: ",cfield
endif
call xcsync(flush_lp)
!
if (mnproc.eq.1) then
write (lp,*) 'start 3-D archive file read'
endif
call xcsync(flush_lp)
!
! --- 3-d fields.
!
nskip = 0
do k=1,kk
call rd_archive(uinc(1-nbdy,1-nbdy,k), cfield,layer, 925)
if (cfield.ne.'u-vel. ' .and. k.ne.2) then
if (mnproc.eq.1) then
write(lp,'(/ a / a,a /)') cfield, &
'error in incupd_read_full - expected ','u-vel. '
endif !1st tile
call xcstop('(incupd_read_full)')
stop '(incupd_read_full)'
elseif (cfield.ne.'u-vel. ') then !k==2
!
! --- count "tracer" fields (to be skipped)
!
if (mnproc.eq.1) then
write(lp,'(2a)') "counting tracers: ",cfield
endif
do nskip= 2,99
call rd_archive(uinc(1-nbdy,1-nbdy,k), cfield,layer, 925)
if (mnproc.eq.1) then
write(lp,'(2a)') "counting tracers: ",cfield
endif
if (cfield.eq.'u-vel. ') then
exit
endif
enddo !nskip
nskip = nskip - 1
write(lp,'(a,i3)') "nskip =",nskip
endif
call rd_archive(vinc(1-nbdy,1-nbdy,k), cfield,layer, 925)
if (cfield.ne.'v-vel. ') then
if (mnproc.eq.1) then
write(lp,'(/ a / a,a /)') cfield, &
'error in incupd_read_full - expected ','v-vel. '
endif !1st tile
call xcstop('(incupd_read_full)')
stop '(incupd_read_full)'
endif
! if (mnproc.eq.1) then
! write (lp,*) 'read v-vel archive file'
! endif
call rd_archive(dpinc(1-nbdy,1-nbdy,k), cfield,layer, 925)
if (cfield.ne.'thknss ') then
if (mnproc.eq.1) then
write(lp,'(/ a / a,a /)') cfield, &
'error in incupd_read_full - expected ','thknss '
endif !1st tile
call xcstop('(incupd_read_full)')
stop '(incupd_read_full)'
endif
! if (mnproc.eq.1) then
! write (lp,*) 'read dpinc archive file'
! endif
call rd_archive(tinc(1-nbdy,1-nbdy,k), cfield,layer, 925)
if (cfield.ne.'temp ') then
if (mnproc.eq.1) then
write(lp,'(/ a / a,a /)') cfield, &
'error in incupd_read_full - expected ','temp '
endif !1st tile
call xcstop('(incupd_read_full)')
stop '(incupd_read_full)'
endif
call rd_archive(sinc(1-nbdy,1-nbdy,k), cfield,layer, 925)
if (cfield.ne.'salin ') then
if (mnproc.eq.1) then
write(lp,'(/ a / a,a /)') cfield, &
'error in incupd_read_full - expected ','salin '
endif !1st tile
call xcstop('(incupd_read_full)')
stop '(incupd_read_full)'
endif
if (.not. nodens) then
! --- skip density
if (mnproc.eq.1) then ! .b file from 1st tile only
read (uoff+925,*)
endif
call zaiosk(925)
endif !nodens:else
!
! --- skip (nskip) tracers
!
do l= 1,nskip
if (mnproc.eq.1) then ! .b file from 1st tile only
read (uoff+925,*)
endif
call zaiosk(925)
enddo !l
enddo !k
!
call xctilr(dpinc,1,kk, 1,1, halo_ps)
!
if (mnproc.eq.1) then ! .b file from 1st tile only
close( unit=uoff+925)
endif
call zaiocl(925)
!
! --- calculate increments
! --- the "inc" reads, above, are full HYCOM fields (not increments yet).
!
if(incstp.eq.1) then
tincstp=1.0
if (mnproc.eq.1) then
write(lp,*)
write(lp,*) 'tincstp=1.0 ',tincstp,incstp
endif
else
! --- allow for LeapFrog and Asselin filter
if (mod(incstp,2).eq.1) then
incstp = incstp-1 !must be even
endif
tincstp=(2.0/sqrt(1.0-ra2fac))/real(incstp)
if (mnproc.eq.1) then
write(lp,*)
write(lp,'(a,f6.4,a,f12.7,i5)') &
'tincstp=',2.0/sqrt(1.0-ra2fac),'/incstp ', &
tincstp,incstp
endif
endif !incstp
!
if (mnproc.eq.1) then
write(lp,*)
write(lp,*) 'calculate t,s,u,v and dp increments'
endif !1st tile
call xcsync(flush_lp)
!
! if (iutest.gt.0 .and. jutest.gt.0) then
! write(lp,*) '*',' iutest= ',iutest+i0,' jutest= ',jutest+j0,' *'
! write(lp,*) '*********** dpinc input ************'
! sumdpi=0.0
! write(lp,'(a)')
! & 'k,dp1,dp2,dpinc='
! do k= 1,kk
! sumdpi=sumdpi+dpinc(iutest,jutest,k)
! write(lp,'(a,i3,3f20.5)')
! & 'k= ',
! & k,dp(iutest,jutest,k,1)*qonem,
! & dp(iutest,jutest,k,2)*qonem,
! & dpinc(iutest,jutest,k)*qonem
! call flush(lp)
! enddo !k
! write(lp,*) 'sumdpi= ', sumdpi*qonem
! call flush(lp)
! endif
!
!$OMP PARALLEL DO PRIVATE(j,k,i) &
!$OMP SCHEDULE(STATIC,jblk)
do j=1,jj
do i=1,ii
if (SEA_U) then
ubinc(i,j)=(ubinc(i,j) - ubavg(i,j,1))*tincstp
do k=1,kk
! use an approximate 2*dpu
if (dpinc(i,j,k)+dpinc(i-1,j,k).gt.2.0*onemm) then
uinc(i,j,k)=(uinc(i,j,k) - u(i,j,k,1))*tincstp
else
uinc(i,j,k)=0.0 !thin target layer
endif
enddo !k
endif !iu
if (SEA_V) then
vbinc(i,j)=(vbinc(i,j) - vbavg(i,j,1))*tincstp
do k=1,kk
! use an approximate 2*dpv
if (dpinc(i,j,k)+dpinc(i,j-1,k).gt.2.0*onemm) then
vinc(i,j,k)=(vinc(i,j,k) - v(i,j,k,1))*tincstp
else
vinc(i,j,k)=0.0 !thin target layer
endif
enddo !k
endif !iv
if (SEA_P) then
do k=1,kk
if (dpinc(i,j,k).gt.onemm) then
sinc(i,j,k)=(sinc(i,j,k) - saln(i,j,k,1))*tincstp
tinc(i,j,k)=(tinc(i,j,k) - temp(i,j,k,1))*tincstp
else
tinc(i,j,k)=0.0 !thin target layer
sinc(i,j,k)=0.0 !thin target layer
endif
dpinc(i,j,k)=(dpinc(i,j,k) - dp(i,j,k,1))*tincstp
enddo !k
endif !ip
enddo !li
enddo !j
!$OMP END PARALLEL DO
!
call xctilr(dpinc,1,kk, 1,1, halo_ps)
!
if (ldebug_incupd_read) then
call pipe_compare_sym2(ubinc,iu,'incupd:ubinc', &
vbinc,iv,'incupd:vbinc')
do k= 1,kk
write (utxt,'(a9,i3)') ' uinc k=',k
write (vtxt,'(a9,i3)') ' vinc k=',k
call pipe_compare_sym2(uinc(1-nbdy,1-nbdy,k),iu,utxt, &
vinc(1-nbdy,1-nbdy,k),iv,vtxt)
write (ptxt,'(a9,i3)') ' dpinc k=',k
call pipe_compare_sym1(dpinc(1-nbdy,1-nbdy,k),ip,ptxt)
write (ptxt,'(a9,i3)') ' tinc k=',k
call pipe_compare_sym1( tinc(1-nbdy,1-nbdy,k),ip,ptxt)
write (ptxt,'(a9,i3)') ' sinc k=',k
call pipe_compare_sym1( sinc(1-nbdy,1-nbdy,k),ip,ptxt)
enddo !k
endif !ldebug_incupd_read
!
! if (iutest.gt.0 .and. jutest.gt.0) then
! write(lp,*) '*',' iutest= ',iutest+i0,' jutest= ',jutest+j0,' *'
! write(lp,*) '*********** dpinc out ************'
! write(lp,'(a)')
! & 'k,dp1,dp2,dpinc='
! sumdpi=0.0
! do k= 1,kk
! sumdpi=sumdpi+dpinc(iutest,jutest,k)
! write(lp,'(a,i3,3f20.5)')
! & 'k= ',
! & k,dp(iutest,jutest,k,1)*qonem,
! & dp(iutest,jutest,k,2)*qonem,
! & dpinc(iutest,jutest,k)*qonem
! call flush(lp)
! enddo !k
! write(lp,*) 'inc sumdpi= ', sumdpi*qonem
! call flush(lp)
! endif
!
if (mnproc.eq.1) then
write(lp,*) '... finished reading incupd',dtime,dtime0
endif !1st tile
call xcsync(flush_lp)
!
endif ! dtime
!
return
end subroutine incupd_read_full
subroutine incupd_read_diff(dtime)
use mod_cb_arrays ! HYCOM saved arrays
use mod_za ! HYCOM I/O interface
use mod_pipe ! HYCOM debugging interface
!
real*8 dtime
!
! --- input 3-d HYCOM increment fields (from a difference archive file)
! --- on model day dtime or dtime + insertion period.
! --- read in covice and thkice increments, for later direct insertion.
!
! --- filenames incup/incupd.iyear_iday_ihour.[ab].
! --- I/O and array I/O unit 925 used here, but not reserved.
!
logical, parameter :: ldebug_incupd_read=.false. !usually .false.
!
character flnm*24, cline*80, cvarin*6, cfield*8
character ptxt*12,utxt*12,vtxt*12
integer i,idmtst,ios,j,jdmtst,k,l,layer,nskip
integer iyear,iday,ihour
real tincstp
! real sumdpi
!
logical lexist
integer nstep0
real*8 dtimei,dtime0
!
# include "stmt_fns.h"
!
dtimei = dtime
!
call forday(dtimei, yrflag, iyear,iday,ihour)
!
write(flnm,'("incup/incupd.",i4.4,"_",i3.3,"_",i2.2)') &
iyear,iday,ihour
!
inquire(file=flnm//'.a',exist=lexist)
!
! --- is input at end of insertion period
!
if (.not. lexist) then
dtimei = dtime + incstp*(baclin/86400.d0)
!
call forday(dtimei, yrflag, iyear,iday,ihour)
!
write(flnm,'("incup/incupd.",i4.4,"_",i3.3,"_",i2.2)') &
iyear,iday,ihour
endif
!
if(dtime.ge.dtimeu) then
!
ncountd=ncountd+1
ncount=0
!
if (ncountd.gt.incupf) then
if (ncountd.eq.incupf+1) then
if (mnproc.eq.1) then
write(lp,*) '... ended updating fields with increments ...'
write(lp,*) 'ncountd= ',ncountd
write(lp,*)
endif !1st tile
call xcsync(flush_lp)
ncountd=incupf+99 !turn off "ended" printout
endif
return
endif !ncountd>incupf
!
if (mnproc.eq.1) then
write(lp,*) 'read (diff) incremental updating ...'
write(lp,*) 'ncountd ...',ncountd
write (lp,*) 'incupd_read: ',flnm
if (dtime.eq.dtimei) then
write (lp,*) ' time: ',dtime
else
write (lp,*) ' time: ',dtime
write (lp,*) ' time_in: ',dtimei
endif
write (lp,*) 'iyear,iday,ihour: ',iyear,iday,ihour
endif !1st tile
call xcsync(flush_lp)
!
call zaiopf(flnm//'.a','old', 925)
if (mnproc.eq.1) then ! .b file from 1st tile only
open (unit=uoff+925,file=flnm//'.b',form='formatted', &
status='old',action='read')
!
read(uoff+925,'(a)') cline
read(uoff+925,'(a)') cline
read(uoff+925,'(a)') cline
read(uoff+925,'(a)') cline
!
read(uoff+925,'(a)') cline !'iversn'
read(uoff+925,'(a)') cline !'jexpt '
read(uoff+925,'(a)') cline !'iexpt '
read(uoff+925,'(a)') cline !'yrflag'
endif !1st tile
!
call zagetc(cline,ios, uoff+925)
read(cline,*) idmtst,cvarin
! if (mnproc.eq.1) then
! write(lp,*) cvarin,' = ',idmtst
! endif !1st tile
if (cvarin.ne.'idm ') then
if (mnproc.eq.1) then
write(lp,*)
write(lp,*) 'error in incupd_read_diff - input ',cvarin, &
' but should be idm '
write(lp,*)
endif !1st tile
call xcstop('(incupd_read_diff)')
stop '(incupd_read_diff)'
endif
call zagetc(cline,ios, uoff+925)
read(cline,*) jdmtst,cvarin
! if (mnproc.eq.1) then
! write(lp,*) cvarin,' = ',jdmtst
! endif !1st tile
if (cvarin.ne.'jdm ') then
if (mnproc.eq.1) then
write(lp,*)
write(lp,*) 'error in incupd_read_diff - input ',cvarin, &
' but should be jdm '
write(lp,*)
endif !1st tile
call xcstop('(incupd_read_diff)')
stop '(incupd_read_diff)'
endif
!
if (idmtst.ne.itdm .or. jdmtst.ne.jtdm) then
if (mnproc.eq.1) then
write(lp,*)
write(lp,*) 'error in incupd_read_diff - input idm,jdm', &
' not consistent with parameters'
write(lp,*) 'idm,jdm = ',itdm, jtdm, ' (dimensions.h)'
write(lp,*) 'idm,jdm = ',idmtst,jdmtst,' (input)'
write(lp,*)
endif !1st tile
call xcstop('(incupd_read_diff)')
stop '(incupd_read_diff)'
endif
!
! --- check for a difference archive
!
call zagetc(cline,ios, uoff+925)
i = index(cline,'diff day')
if (i.eq.0) then
if (mnproc.eq.1) then
write(lp,*)
write(lp,*) 'error in incupd_read_diff - ', &
'not a difference archive'
write(lp,*) 'header = '
write(lp,*) trim(cline)
write(lp,*)
endif !1st tile
call xcstop('(incupd_read_diff)')
stop '(incupd_read_diff)'
endif
!
! --- skip (most) surface fields.
!
call zaiosk(925)
call zagetc(cline,ios, uoff+925)
i = index(cline,'=')
read(cline(i+1:),*) nstep0,dtime0,layer
if (mnproc.eq.1) then
write(lp,*) 'dtime0= ',dtime0
endif
if (dtime0.ne.dtimei) then
if (mnproc.eq.1) then
write(lp,*)
write(lp,*) 'error in incupd_read_diff - input ',dtime0, &
' but dtimei should be ',dtimei
write(lp,*)
endif !1st tile
call xcstop('(incupd_read_diff)')
stop '(incupd_read_diff)'
endif
!
! assumes that there is a new incremental updating file once a day
! for "incupf" days, see blkdat.input
!
dtimeu=dtime0+1.d0
!
if (mnproc.eq.1) then
write(lp,*)
write(lp,*) 'dtime, dtime0, dtimeu = ',dtime, &
dtime0, dtimeu